Question by yimyy · Mar 25, 2020 at 10:10 AM · tcp localhost tcpclient

Unity Client SocketException: Connection refused,Unity Client SocketException: Connection refused + Crashes

Hi,

When I try to run an application on Unity, I get an error (SocketException: Connection refused) on the line: using (TcpClient tcpClient = new TcpClient("127.0.0.1", port_number))

Then, I tried to look for all opened port in network utility on Mac, and when I telnet 127.0.0.1 port_number on terminal, it was able to connect, but when I try to run the code on Unity, it crashes now instead of throwing that error mentioned in the title.

I don't think it is a code issue because my teammates are able to run the same program successfully on their machine.

I am using Unity 2019.2.5f1, MacOS Mojave version 10.14.6, and I disabled my firewalls and uninstalled all my VPNs.

I am looking for possible cause of my issue here and what to research to debug this.

Thank you.

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